Mirrored visual feedback limits distal effect anticipation
Mirrored visual feedback limits distal effect anticipation
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DOI：
10.1007/s00221-012-3018-7
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发表时间：
2012-04-01
影响因子：
2
通讯作者：
Ladwig, Stefan
中科院分区：
文献类型：
--
作者：
Sutter, Christine;Ladwig, Stefan
技术环境中的现代工具通常以手部动作（操作遥控器）及其预期动作效果（屏幕上显示的无人驾驶车辆、机器人或化身的运动）的空间分离为特征。通常，非对应的近端和远端运动效应对人类信息处理系统提出了很高的要求。本研究旨在探讨现代技术环境如何影响计划和控制行动的过程。参与者进行同侧或对侧运动，以响应彩色刺激，而刺激的位置被忽略。他们没有直接看到刺激和手，但在他们面前的投影屏幕上接收视觉反馈（保留或反转空间关系）。视觉反馈保留空间关系导致通常的西蒙效应。然而，视觉反馈逆转空间关系逆转了同侧反应中的Simon效应，并消除了对侧反应中的Simon效应（Exp. 1）。损害近端运动效应环，使得来自移动的手的本体感受/触觉信息不再是计划和控制动作的可靠来源，从而减弱了相容性效应（Exp. 2）。此外，远端的行动效果占主导地位的行动控制，即使是对身体相关的影响。看来，转换运动的动作控制取决于本体感受/触觉和视觉信息的可靠性。当本体感觉和视觉之间的特征重叠量很低，本体感觉（视觉）信息不再可靠时，远端（近端）动作效应向前发展，并在控制转换动作中变得至关重要。
Modern tools in technological environments are often characterized by a spatial separation of hand actions (operating a remote control) and their intended action effects (displayed movements of an unmanned vehicle, a robot, or an avatar on a screen). Often non-corresponding proximal and distal movement effects put high demands on the human information processing system. The present study aimed to investigate how modern technological environments influence processes of planning and controlling actions. Participants performed ipsi- or contralateral movements in response to colored stimuli, while the stimulus location had to be ignored. They did not see the stimuli and hands directly, but received visual feedback (with retained or reversed spatial relations) on a projection screen in front of them. Visual feedback retaining spatial relations led to the usual Simon effect. However, visual feedback reversing spatial relations inverted the Simon effect in ipsilateral responses, and eliminated it in contralateral responses (Exp. 1). Impairing the proximal movement-effect loop so that proprioceptive/tactile information from the moving hand was no longer a reliable source for planning and controlling actions attenuated compatibility effects (Exp. 2). Moreover, distal action effects predominated action control even for opposing body-related effects. It seemed that action control of transformed movements depended on the reliability of proprioceptive/tactile and visual information. When the amount of feature overlap between proprioception and vision was low and proprioceptive (visual) information was no longer reliable, then distal (proximal) action effects stepped forward and became crucial in controlling transformed actions.